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Analysis of a Three-phase Transformer Using COMSOL Multiphysics and a Virtual Reality Environment

The simulation software COMSOL Multiphysics is applied to the numerical com-putation of the magnetic fields of a three-phase transformer. A three-dimensional model of the geometrical configuration is created with the help of the CAD tools of COMSOL Multiphysics. There, all dimensions of the transformer are defined by parameters. The creation of an optimal finite element mesh is improved by some modifications of the geometrical model.

The magnetic field formulation of the AC/DC module of COMSOL Multiphysics is chosen for a static analysis of the transformer. Eddy currents in the iron core are neglected. Nevertheless, a complete period of the time-harmonic currents in the coils is taken into account by a parameter sweep. Finally, the finite element model along with the computed magnetic fields is exported via LiveLink for MATLAB to the visualization software HLRS COVISE for a vivid post-processing within a virtual reality environment.